Device for removing rings from glassware.



J. A. LEWIS. DEVICE fOR REMOVING RINGS FROM GLASSWARE.

APPLICATION FILED JAN-9.1918 1,272,971. N PatentedJuly 16, 1918.

2 SHEETSSHEET I.

A T TORNE Y8 J. A. LEWS.

DEVICE FOR REMOVING RINGS FROM GLASSWARE.

APPLlCATlON FILED IAN-9, I518 Patented July 16, 1919:.

2 SHLEYS-SHEE1Z UNITED STATES PA ENT OFFICE.

JOHN ANDREW LEWIS, OF GRAFTON, WEST GLASS COMPANY, OF GR To till 367.01% it may concern. a Be i't' that I. Join; A.Lnw1s, a citizen of the United States, and a resident of :Graft' n, ,in the county of Taylor, and State of ,est Virginia, have invented cerain ne wand useful Improvements in De vices for, Removing Rings from Glassware, of which the following is a specification.

My 'nvention is an, improvement in devices or removing rings from glassware, andjhas for its object to. provide mechanism (Sr-fa se inconnection with glassmaking machiliery. or unscrewing the iron rings which are in theiformation of-glassware for formingthe screw threads at the top of the mar-c i Inttiedrawings: a I

Figureliis aivertical longitudinal section ofythedmproved device; 4' Y Fig. 2 is a top plan view of the rack bar and its connections;

Fig. '3 is a vertical section on -the line 3-3 of Fig. 2; and

Fig. 4 is a side view showing the knuckle joint connection between the removing finger and its support.

As is known, the rings which are adapted to be unscrewed by the present mechanism are mold attachments used for forming the screw thread on the tops of glassware, and in the usual practice of manufacturing glass a boy or man is provided for unscrewing this ring. The duty is very disagreeable on account of the excess heat and it is difiicult for glass factories to keep the position filled.

In the usual manufacture of such articles, the form is transferred from the blank to the blow mold, and the ware is blown. At the next station after the blowing, the ring should be removed, and the present embodiment of the invention is mounted on a bracket or arm 1 which is just above the above mentioned station. A cylinder 2 is secured to the arm by means of screws 3, and within this cylinder moves a piston 4 which is connected by a piston rod 5 with a rack bar 6 which operates the unscrewing mechanism. The said mechanism comprises a shaft 7 which is journaled in vertical position in the arm 1 and in a casing 8, through which the rack bar 6 moves, the casing having openings 9 for permitting the passage of the rack bar.

The rack bar engages a pinion 10 on the shaft 7, and this pinion has a collar 11 be- Speclfloatlon of Letters Patent.

AFTON, WEST VIRGINIA.

D VI-er; ron REMOVING RINGS riaoiu GLASSWARE.

Patented July 16, 1918.

Application filed January 9, 1918. Serial No. 211,051.

low the pinion. provided with a ring l2 extending beyond .the teeth of the pinion to support the rackbar. A roller 13 is 10111- naled behind the rackbar to hold the same in contact with the pinion. At its lower end the shaft 7 has a threaded portion 14, and this threaded portion engages a hub 15v on an arm 16 extending radially from the shaft. W

A threaded pin 17 connected with the body 18 of a yoke is threaded through the outer end of the arm, and is nut 19 above the arm, and the arms 20 of the yoke are connected at one web 21. A moving finger 22 is pivoted between the arms, as indicated at 23, and the web 21. it is evident, will limit the move ment of the arm 22 in one direction with re: spectto the stem 17 to a position in salinement with the stem.

as indicated 'in dotted lines in Fig.4. The ring 24 which is to be unscrewed from the ware 25 has a radial arm 26 provided with a handle at its free end, and the arm 22 is adapted to engage this arm 26. v

eferring to Fig. 3, it will be noticed that the roller 1 which engages the rear of the rack bar is mounted on a bolt 27 which is passed vertically through the casing 8 and is engaged by a nut below the casing. The shaft 7 has a stop collar 28 at its upper end, which is pinned to the downward movement. At the under face of the arm 1 the shaft 7 has an enlarged threaded portion 29, which is engaged by a nut 30 to limit the upward motion of the arm. A set screw 31 is threaded throu h that head of the cylinder 2 remote from t e rack bar 6, and this set screw engages the piston 4 to limit its movement away from the Shaft 7. t

In operation, at the moment that the ware 25 reaches the position shown in Fig. 1, air is admitted to the cylinder 2 at the end remote from the shaft 7 and the piston 4 is driven toward the set screw 31, the rack bar 6 sharing in this movement. This rotates the shaft? in a direction to cause the arm 16 'to unscrewthe ring 24, and the piston 4 is moved just far enough to cause the unscrewing movement. As'the finger 22 returns, it swings upward over the arm 26, so that it does not move the same, that is, there is engaged bya side edge by a a The finger, ho ever, maymove freely in the opposite direction VIRGINIA, ASSIGNOR TO TYGART VALLEY shaft and limits its a rule joint connection between the arm 1 1G and tho finger Thu rxtont of moveniont; of the piston 4 may hr iimitod by the set screw 3] to tho desired point to rrtnoro the rin 24.

It; \\i I he understood that compressed air in used for operating the cyiindor in tho prwrnt inntanor. hcrauso of tho fact that GOXUPI'PESUCI air is usrd to operatr the blowing tnacliinr. It i ()iH'iUHF'. lunvuvor, that stoam or any othrr )IIUiiW fluid or rior-tricity might be used.

I claim:

1. A device of tho rharartor njwttiiit'tifljtfllh pribing :1 supprn't, a shaft journalod in the support and provided at its lower end with a radial] arm. a finger drpuniling from tho arm and ('ounrrtvd thrrrto h a rulr joint to permit the fingrr to swing freely in ono direction from. a \rrtirxal position. and to hold the fingur in a \rrtioai pooition when it swings in the other direction, power operated moans For IUltliilig tho shaft, said xnrans con'iprising' a cylinder, :1 piston in tho cylinder, at rarh har connected with the piston, tho xhaiit having a pinion for engagement by thrrark bar, and means for limiting the movement of the piston away from the shait, said moans being adjustable.

2. A device of the charncterspecified,comprising a support, a shaft journaled in the support and provided at. its lower end with a radial arm, a finger depending from the arm and connected thereto by a rule joint to permit the finger to swingfreely in one dirrction from a vertical position, and to hold tho finger in a vertical position when it swings in the other direction, power 0 rratrd means for rotating the shaft, said moans comprising a oylindor, a piston in tho rylin'dcr, and a rack bar connected with thrpiston, the shaft haying a pinion for rngragrinont by the rack bar. i

I). A device of the character s1mcified,co1nlil'ihitlg a support. a shaft journal's/d in the support, and provided at. its lower end with a radial arm, a finger depending from the arm and connected thereto by a rulojoint to prrmit the finger to swing freely in one direction from a vertical position, and to hold the fingrr in a vertical position when it swings in the other direction, and powor ,opuratrd means for rotating the shaft.

JOHN ANDREW LEWIS. 'itnessos LORENA PERINE, RALPH DIXON. 

